The great tits of Wytham Woods were forming mobs to help defend one another. “It could be that they join because their own nest might also be at risk,” said the study’s lead author. “Or they may be playing tit-for-tat.”
The great tits of Wytham Woods were forming mobs to help defend one another. “It could be that they join because their own nest might also be at risk,” said the study’s lead author. “Or they may be playing tit-for-tat.”